Suspension-clamp for electric conductors.



N0. 693,4"). Patented Feb. l8, I902.

. S. S. L'EONABQ. 1

SUSPENSION CLAMP FOR ELEGTFIIQ GONDUCT ORS.

(Application filed Oct. 12,1901.

(No Model.)

- UNITED STATES f PATENT PQFFIQE.

SYLVESTER s. LEONARD, OF CHICAGO, ILLINOIS.

SUSPENSION-CLAMP FOR ELECTRIC CONDUCTORS.

SPECIFICATION forming part of Letters Patent No. 693,410, dated February18, 1902.

A'pplicationfiled October 12, I901. bferial No.78,399.. (No model.)

,a subject of the King of Great Britain, residing at Chicago,- in thecounty of Cook and State of Illinois, have invented certainnew anduseful Improvements in Suspension-Clamps for Electric Conductors, ofwhich the following is a specification.

My invention relates to certain improvements in suspension-clamps forelectric conduct-ors of the class in which the clamps are secured tosuitable means of support, as poles, and are designed to carry a wirecable, wire, or other suspending material upon which the conductor issupported. 1

' The object of this invention is to simplify and cheapen theconstruction of clamps of this class and also to render more easy theputting up of the cable and conductor or the repairing of thesuspension-strand from which the conductor is supported.

The invention has been illustrated in drawings furnished herewith bymeans of three figures, of which Figure 1 is a perspective view of theclamp in its preferred form; Fig. 2, a central vertical cross-sectionthrough the same, the line of section being indicated at 2 2 in Fig. 1;and Fig. 3 is a perspective view of a clampinghook used in connectionwith this device.

Referring to these drawings, A represents the supporting member of theclamp, which is preferably constructed as shown, the upright portion orback a being formed with openings at, through which bolts a may bepassed to secure the same upon the supporting-pole B. The lower portionof said back is bent outward to form an approximately horizontal portiona the end of which is bent up to form a supporting-hook a preferablyextending upward at a slight inclination. In the upper edge of the saidhook is formed a seat a, in which rests the supporting-strand, (shown indotted lines at O.) A clampinghook D,Fig.3,is employed to clamp thestrand in place upon the outrigger, and, as shown, said hook ispreferably. formed with a seat d, adapted to impinge upon'the strand,and with a screw-threaded shank at, extending down through a hole a inthe portion a A nut (1 upon the screw-threaded end of the shank d,

conductor.

with a flat face (1 adapted to rest against the upwardly-extending hookat of the supporting member, and an opposite convex or rounded face 1The fiat face keeps the two hooks in the proper relation to clamp thesupporting wire, guiding the clamp hook upon the other in the fasteningor releasing of the supporting-cable.

The conductor is indicated by dotted lines at Eand, as is shown, instructures of this class is hung from the supporting-strand C by hooksc. It is customary in hanging the conductor to fasten the hooks upon thecable and hang the same upon the supportingstrand 0 and then to stretchor tighten the In the case of a great many supporting-clamps now inpractice it is necessary to provide a lineman, whose duty it is to passthehook over the clamps as the cable is stretched; but the convex facesof the clamping-hooks offer but little resistance to the sliding of thesupporting-hooks along the supporting-cable, so that the conductor maybe moved longitudinally without giving attention to each individualpoint of support. In case the strand 0 becomes broken or needs repair atany point or it becomes necessary that a portion of thesupporting-strand be re= moved and a new one put in its place the nuts dmay be loosened sufficiently to allow the strand to be removed from itsseat and the new one replaced, after which said nut may be againtightened up.

I recognize the possibility of more or less variation in the exact formof the various parts and for that reason do not limit myself thereto.

I claim as'new and desire to secure by Let ters Patent- 1. In a clamp ofthe class described, the combination with a supporting member, having anoutwardly-extending portion and a portion extending upward therefrom andprovided at the top of said upwardly-extending portion with acable-seat,of a rigid clampinghook upon one side of said upwardly-extendingportion, said hook being so recurved and grooved at its end as to form asecond cableseat at the top thereof, saidhook being rounded upon theside opposite the upwardly-extending portion, and being provided withmeans for drawing the clamping portion down upon the cable;substantially as described.

3. The combination with a member, A, adapted for attachment to asuitable support and extending outward at (0*, and upward at a, andhaving a cable-seat, a in the top of the portion, a", and a suitableperforation in the portion, (0 of the hook, D, provided with a flat sideresting upon the portion, a", the upper end forming a seat, d, roundedsides opposite the seat and the portion, a, and a shank extendingthrough the perforation and provided with a clampingplate; substantiallyas described.

In Witness whereof I have hereunto set my hand, at Chicago, in thecounty of Cook and State of Illinois, this 10th day of October, A. D.1001.

SYLVESTER S. LEONARD.

Witnesses:

CHAS. O. SHERVEY, S. BLIss.

